WPF designer problem (MarkupExtension ctor confuse the VS2008SP1 designer) - C# Discussion Boards

Re: Finding Path

Rajesh R Subramanian25-Sep-08 1:08

Rajesh R Subramanian

25-Sep-08 1:08

What is a "webcam images path"?

Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal - Friedrich Nietzsche

.·´¯`·->Rajesh<-·´¯`·.
[Microsoft MVP - Visual C++]

Re: Finding Path

sirisha guttikonda25-Sep-08 1:10

sirisha guttikonda

25-Sep-08 1:10

i mean. when web cam captures an images by default it will be saved in somewhere....

i want to get that path.

siri

Re: Finding Path

Rajesh R Subramanian25-Sep-08 1:14

Rajesh R Subramanian

25-Sep-08 1:14

I don't know of a standard path where a webcam would store all the captured images. The app might store it in "my pictures", or in a folder where the app is installed. Different webcam applications may use different folders, don't you think? Roll eyes | :rolleyes:

Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal - Friedrich Nietzsche

.·´¯`·->Rajesh<-·´¯`·.
[Microsoft MVP - Visual C++]

Re: Finding Path

sirisha guttikonda25-Sep-08 1:18

sirisha guttikonda

25-Sep-08 1:18

Thanks for ur response..

Actually i need to store the web cam captured image dynamically

siri

Re: Finding Path

Rajesh R Subramanian25-Sep-08 1:53

Rajesh R Subramanian

25-Sep-08 1:53

So, have an option in your application where the user can specify the path on where to store the captured images. It would be ideal to create a folder, within the "My Pictures" folder, and store the images there by default.

Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal - Friedrich Nietzsche

.·´¯`·->Rajesh<-·´¯`·.
[Microsoft MVP - Visual C++]

Re: Finding Path

sirisha guttikonda25-Sep-08 2:01

sirisha guttikonda

25-Sep-08 2:01

But.I'm not able to the default saving location... i'm using hp wecam here...

any ideas please...

siri

Re: Finding Path

Rajesh R Subramanian25-Sep-08 2:07

Rajesh R Subramanian

25-Sep-08 2:07

There's no default saving location. Create a folder within My pictures like "My Captures" and store it within that folder.

sirisha guttikonda wrote:
i'm using hp wecam here

Umm... So, you are not writing an utility for a webcam yourself? Are you just intending to find the default location where this HP webcam stores the captured images? If yes, there must be an app that should be controlling it. Why not check with the settings?

Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal - Friedrich Nietzsche

.·´¯`·->Rajesh<-·´¯`·.
[Microsoft MVP - Visual C++]

WPF designer problem (MarkupExtension ctor confuse the VS2008SP1 designer)

Super Lloyd25-Sep-08 0:57

Super Lloyd

25-Sep-08 0:57

I have a simple experimental WPF application which works fine.
However the designer is broken.

I'm working on a MarkupExtension which takes 2 parameter, here is the faulty XAML snippet:

<TextBlock
  Text="{Binding}"
  Background="{Binding
                   Converter={local:Script
                                    'if(value%2==0) Brushes.Red; else Brushes.Green;', {x:Type Brushes}}}"/>

And I got this error message in the designer: "Problem Loading ........ <<Button: Reload the designer>>"

If I click on the button it fails and I got this error message in the error list:
Error 1 No constructor for type 'ScriptExtension' has 2 parameters. C:\Dev\Tests\ExpressionConverter\ExpressionConverter\Window1.xaml 13 43 ExpressionConverter

But problem is, my has extension has all the required parameters!!!
here is a snippet of its C# code...

public class ScriptExtension : MarkupExtension
{
   public ScriptExtension(string code) { Init(code); }
   public ScriptExtension(string code, Type t0) { Init(code, t0); }
   public ScriptExtension(string code, Type t0, Type t1) { Init(code, t0, t1); }
   public ScriptExtension(string code, Type t0, Type t1, Type t2) { Init(code, t0, t1, t2); }
   public ScriptExtension(string code, Type t0, Type t1, Type t2, Type t3) { Init(code, t0, t1, t2, t3); }
   public ScriptExtension(string code, Type t0, Type t1, Type t2, Type t3, Type t4) { Init(code, t0, t1, t2, t3, t4); }

   void Init(string code, params Type[] types)
   {
       ......
    }
    .....
}

Any tip / work around (to re-enable the designer) please?!?

A train station is where the train stops. A bus station is where the bus stops. On my desk, I have a work station....
_________________________________________________________
My programs never have bugs, they just develop random features.

how to debug through through external dlls

aiswaryasekhar25-Sep-08 0:50

aiswaryasekhar

25-Sep-08 0:50

hi all,

I have an exe and it contains some other dlls and using functions from that dll.I want to debug through that dll also using DbgCLR.exe.

can anybody help me to solve this problem?

Thanks & Regards
Aiswarya

Re: how to debug through through external dlls

leppie25-Sep-08 1:08

leppie

25-Sep-08 1:08

Sorry, you cant. Neither will you be able to step thru any code in the external dll, nor will it work on native dlls (you need VS for that).

xacc.ide - now with TabsToSpaces support
IronScheme - 1.0 alpha 4a out now (29 May 2008)
((lambda (x) `((lambda (x) ,x) ',x)) '`((lambda (x) ,x) ',x))

Re: how to debug through through external dlls

aiswaryasekhar25-Sep-08 18:46

aiswaryasekhar

25-Sep-08 18:46

hi,

thank you..

but iam able to step through the dll using the DbgCLR.exe once i get the il code.but what my problem is i want to step through the external dll referenced by the application also.is it possible?

Thanks
Aiswarya

problem in code

NiloofarNoroozi25-Sep-08 0:35

NiloofarNoroozi

25-Sep-08 0:35

hi
when i run this code this generate error
why?
objCommand.Parameters.Add("@nopersoneli", SqlDbType.int).Value =int.parse(txtNoPersoneli.text);
thanks a lot

Re: problem in code

DaveyM6925-Sep-08 0:41

DaveyM69

25-Sep-08 0:41

1. What's the error you're getting
2. Should that be @"nopersoneli" ?
3. Should that be txtNoPersoneli.Text ?
4. Does txtNoPersoneli.Text definately contain a valid integer?
4b. Consider getting the integer value before this line by using int.TryParse method.

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Expect everything to be hard and then enjoy the things that come easy. (code-frog)

Re: problem in code

Harvey Saayman25-Sep-08 0:47

Harvey Saayman

25-Sep-08 0:47

DaveyM69 wrote:
2. Should that be @"nopersoneli" ?

it seems hes trying to execute a SQL Stored Procedure using SqlCommand... see my reply

Harvey Saayman - South Africa
Junior Developer
.Net, C#, SQL
you.suck = (you.Passion != Programming & you.Occupation == jobTitles.Programmer)
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Re: problem in code

DaveyM6925-Sep-08 1:29

DaveyM69

25-Sep-08 1:29

Yeah - just saw the 'crapiness' of the question and jumped on the obvious without too much thought. I never even looked at the beginning of the statement - the possibilities I spotted from briefly scanning just one line of code made me close my eyes!

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Expect everything to be hard and then enjoy the things that come easy. (code-frog)

Re: problem in code

Harvey Saayman25-Sep-08 0:45

Harvey Saayman

25-Sep-08 0:45

Firstly "problem in code" is as usefull as BLAH for a subject line!

Secondly give us more detail, what exception is thrown?

by the looks of things you need to do this...

objCommand.Parameters.AddWithValue("@nopersoneli", Int32.parse(txtNoPersoneli.Text));

objCommand.Parameters.Add("@nopersoneli", SqlDbType.Int);
objCommand.Parameters["@nopersoneli"].Value = Int32.parse(txtNoPersoneli.Text);

Re: problem in code

leppie25-Sep-08 1:18

leppie

25-Sep-08 1:18

Harvey Saayman wrote:
by the looks of things you need to do this...

His code 'structure' is actually correctly and will do the same as both your examples. Note: the Add method returns a IDBParameter.

xacc.ide - now with TabsToSpaces support
IronScheme - 1.0 alpha 4a out now (29 May 2008)
((lambda (x) `((lambda (x) ,x) ',x)) '`((lambda (x) ,x) ',x))

Re: problem in code

Harvey Saayman25-Sep-08 2:24

Harvey Saayman

25-Sep-08 2:24

leppie wrote:
is actually correctly

[joke]
Don't let Dalek Dave see that, you'll definitively get a English lesson Poke tongue | ;-P

[/joke]

leppie wrote:
the Add method returns a IDBParameter.

I didn't even notice that! The examples i gave is how i use the SqlCommand(or used, im a Linq fan boy now!), the latter of the two is used for DateTime parameters to ensure that the data gets to the db in the correct format.

Re: problem in code

nelsonpaixao25-Sep-08 13:03

nelsonpaixao

25-Sep-08 13:03

objCommand.Parameters.Add("@nopersoneli", SqlDbType.int).Value =
convert.Toint32(txtNoPersoneli.text);

if that doesn´t work is because "txtNoPersoneli.text" cannot be converted to a int value, or "@nopersoneli" is not int.

listen, there is not a reason for that not work Blush | :O

nelsonpaixao@yahoo.com.br

trying to help & get help

Problem in passing '&' symbol

Krishna Varadharajan25-Sep-08 0:21

Krishna Varadharajan

25-Sep-08 0:21

<a href="newdetails1.aspx?pid=<%#Eval("companyname") %>">
<asp:Label ID="Label4" runat="server" Text='<%#DataBinder.Eval(Container.DataItem,"companyname") %>'>"</asp:Label></a>

The above code in code behind page. (if we send krish & co.)

pi = Request.QueryString["pid"].ToString();

The above code in aspx page. ( its reciving in pi(krish) )

Can u pls solve this issue...

krishna

Re: Problem in passing '&' symbol [modified]

Simon P Stevens25-Sep-08 0:25

Simon P Stevens

25-Sep-08 0:25

You probably need to escape the & sign.

replace it with "&" (without the quotes).

[Edit: oops. the escape string is "&" without the quotes]

Simon

modified on Thursday, September 25, 2008 6:32 AM

Re: Problem in passing '&' symbol

Krishna Varadharajan25-Sep-08 0:29

Krishna Varadharajan

25-Sep-08 0:29

Iam dynamically retriving the companyname from database to display in the page where i binded while clicking that companyname to pass complete companyname.

Can you pls give me some examples, it will be gr8 full to me, pls

krishna

Re: Problem in passing '&' symbol

Simon P Stevens25-Sep-08 0:32

Simon P Stevens

25-Sep-08 0:32

I don't use asp, so I could be wrong. But in html, & signs must be escaped.

You need to create a function to process the company name that you read from the database and replace any illegal html characters like < or > or & with the correct escape string.

(I noticed in my last post the escape string was escaped Smile | :)

the string you need is "&" without the quotes.)

(There is probably already a function to do this. You might be better asking this question in the asp.net forum)

Simon

Re: Problem in passing '&' symbol

Harvey Saayman25-Sep-08 0:36

Harvey Saayman

25-Sep-08 0:36

ASP.Net questions belong in the ASP.Net forum!

Re: Problem in passing '&' symbol

Guffa25-Sep-08 4:39

Guffa

25-Sep-08 4:39

You have to url-encode the string that you put in an url:

<a href="newdetails1.aspx?pid=<%#Server.UrlEncode(Eval("companyname"))%>">

Despite everything, the person most likely to be fooling you next is yourself.

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